Description
America's National Parks have just turned 100! It's a good time to mine your archives: you may use any photo old or new taken by you that you have taken in any nation's National Parks, Seashores, Monuments, or Wildlife Refuges.

Extra Rules
There are no date restrictions on this challenge: your source photograph may be old or new, as long as it was shot with a digital camera and not previously entered in a DPC challenge. For this challenge only, archived DNG files will be accepted as originals.